[bug#66592] [PATCH v2] scripts: archive: Check compatibility of command line options.

[Maxim Cournoyer]

Hi Simon,

Simon Tournier <zimon.toutoune@gmail.com> writes:

> Fixes <https://issues.guix.gnu.org/66358>.
> Reported by Perry, Daniel J <dperry45@gatech.edu>.
>
> * guix/scripts/archive.scm (guix-archive)[compatible-option]: New procedure.
> and use it.
> ---
>  guix/scripts/archive.scm | 19 ++++++++++++++++++-
>  1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/guix/scripts/archive.scm b/guix/scripts/archive.scm
> index 2b5a55a23f..466aa9c4d7 100644
> --- a/guix/scripts/archive.scm
> +++ b/guix/scripts/archive.scm
> @@ -1,6 +1,7 @@
>  ;;; GNU Guix --- Functional package management for GNU
>  ;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2019, 2020, 2021 Ludovic 
> Courtès <ludo@gnu.org>
>  ;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
> +;;; Copyright © 2023 Simon Tournier <zimon.toutoune@gmail.com>
>  ;;;
>  ;;; This file is part of GNU Guix.
>  ;;;
> @@ -375,8 +376,24 @@ (define-command (guix-archive . args)
>            (loop (read-line port)
>                  (cons line result)))))
>  
> +  (define* (compatible-option options #:key actions)
> +  "Return the OPTIONS if it is compatible with the list of ACTIONS."
> +  (let ((some-actions (fold (lambda (action answers)
> +                              (if (assoc-ref options action)
> +                                  (cons action answers)
> +                                  answers))
> +                            '()
> +                            actions)))
> +    (match some-actions
> +      ((action)
> +       options)
> +      ((action other-actions ...)
> +       (leave (G_ "the options ~{'~s' ~}are exclusive~%") some-actions)))))
> +
>    (with-error-handling
> -    (let ((opts (parse-command-line args %options (list %default-options))))
> +    (let* ((opts (parse-command-line args %options (list %default-options)))
> +           (opts (compatible-option opts
> +                                    #:actions (list 'authorize 'export 
> 'import))))
>        (parameterize ((%graft? (assoc-ref opts 'graft?)))
>          (cond ((assoc-ref opts 'generate-key)
>                 =>

Looks good from a cursory look, but it seems a nice to test in
tests/guix-archive.sh.

Could you please send a v3 with some tests for it?

-- 
Thanks,
Maxim